/*
 * Copyright (c) 2006, Swedish Institute of Computer Science
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#)$Id: uz2400-arch.c,v 1.9 2010/06/23 10:19:15 joxe Exp $
 */

#include <io.h>
#include <signal.h>

#include "contiki.h"
#include "contiki-net.h"

#include "dev/spi.h"
#include "dev/uz2400.h"

#ifndef CONF_SFD_TIMESTAMPS
#define CONF_SFD_TIMESTAMPS 0
#endif /* CONF_SFD_TIMESTAMPS */

#ifdef CONF_SFD_TIMESTAMPS
#include "uz2400-arch-sfd.h"
#endif

// for debugging
#include <dev/leds.h>


/*******************************************************************************
 Function Name: DisInt
 Parameters: None
 Return Data: None
 Description: Disable the external interrupt by CPU interrupt mask
********************************************************************************/
static int count = 0;
void DisInt(void){
  if(count++ == 0) {
	  leds_on(LEDS_GREEN);
  }
}

/*******************************************************************************
 Function Name: EnabInt
 Parameters: None
 Return Data: None
 Description: Enable the external interrupt by CPU interrupt mask
********************************************************************************/

void EnabInt(void){
  if(--count == 0) {
	  leds_off(LEDS_GREEN);
  }
}

/*******************************************************************************
 Function Name:  IO_PORT1_EDGE()
 Parameters: None
 Return Data: None
 Description: Interrupt Service Routine
********************************************************************************/

INTERRUPT_STS IntStatus;
extern INTERRUPT_STS IntFlag;

interrupt(PORT1_VECTOR)
uz2400_port1_interrupt(void)
{

  P1IFG &= ~1;
  //printf("Interrupt\n");
  ENERGEST_ON(ENERGEST_TYPE_IRQ);
  
  *((UINT8 *)&IntStatus) = spi_sr(ISRSTS);
  
  if(IntStatus.TxN){ //Transmit frame success
    DisInt();
    IntFlag.TxN = 1;
    EnabInt();
  }
  
  if(IntStatus.TxG1){
  
  }
  
  if(IntStatus.TxG2){
  
  }

  if(IntStatus.Rx) {
      if(uz2400_interrupt()) {
        LPM4_EXIT;
      }
  }
  
  if(IntStatus.Sec){ //Received a secure frame , need key to decrypt
    IntFlag.Sec = 1;
  }
  
  if(IntStatus.Timer){
  
  }
  
  if(IntStatus.Wake){
    uz2400_wakeup_pin_0;
    LPM3_EXIT;
  }
  
  if(IntStatus.Sleep){
    
  }
  ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}

/*---------------------------------------------------------------------------*/
void
uz2400_arch_init(void)
{
}
/*---------------------------------------------------------------------------*/
